Finding the Fourth Proportional to 129,961.02, 179,325.99 and 73,371.18
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Solution
The fourth proportional to 129,961.02, 179,325.99 and 73,371.18 is: 101,240.81
Step by Step Solution
- Step 1: Write the proportion equation
129,961.02 : 179,325.99 = 73,371.18 : x - Step 2: Convert to fraction form
129,961.02/179,325.99 = 73,371.18/x - Step 3: Cross multiply
129,961.02x = 179,325.99 × 73,371.18 - Step 4: Simplify right side
129,961.02x = 13,157,359,490.97 - Step 5: Solve for x
x = 13,157,359,490.97/129,961.02 - Step 6: Final answer
x = 101,240.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.